JP2018077818A - Pipe shape management system, method thereof, and computer readable recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pipe shape management system, its method, and a computer readable recording medium.SOLUTION: A pipe shape management method relating to the pipe shape management system, the method and the computer readable recording medium includes the steps of: acquiring a three-dimensional CAD model including a plurality of pieces of pipe design information; acquiring three-dimensional position information of a pipe group through first laser scanning to the pipe group that completes construction; determining whether or not the three-dimensional CAD model coincides with a first laser scanning result by comparing each other; performing stress analysis to information that does not coincide with the three-dimensional CAD model in the three-dimensional position information acquired through the first laser scanning; and determining whether or not reconstruction of the pipe group is performed in accordance with a stress analysis result.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a pipe shape management system, a method thereof, and a computer-readable recording medium, and more specifically, by comparing position information through a three-dimensional CAD (computer aided design) model and laser scanning, and a test run. The present invention relates to a pipe shape management system for judging the soundness of main pipes before and after, a method thereof, and a computer-readable recording medium.

  In plants and power plants, major piping is frequently damaged due to design and construction errors, which causes enormous damage. Therefore, it is necessary to compare the design and construction of the main piping, verify (shape management), and measure thermal deformation to verify the soundness of the piping.

  In existing systems, the main pipes are soundly secured by measuring the scale of the support base attached to the pipes. At the time of measurement, the displacement of the support base is adjusted by turning the rod. In this case, there is no method capable of ensuring the soundness of the main piping through accurate displacement measurement because accurate displacement measurement is impossible and thereby thermal deformation measurement is also impossible.

  In addition, there is equipment that measures the amount of thermal deformation of pipes in the state of thermal deformation, but the thermal displacement measuring device is a device that attaches a contact-type measuring device to a part of the piping and only performs measurement records related to thermal displacement. There was a problem that the soundness of the system could not be verified and measurement was impossible over the entire section.

  The problem to be solved by the present invention is to analyze the soundness of piping through laser scanning between a stopped state and a starting state based on a three-dimensional CAD model of a plant and a power plant, and to make an error in the design and construction of the piping. It is intended to provide a pipe shape management system, a method thereof, and a computer-readable recording medium that can minimize facility and maximize facility reliability through periodic thermal deformation measurement.

  According to an embodiment of the present invention, a pipe shape management method includes obtaining a three-dimensional CAD model including a plurality of pipe design information, and performing a first laser scanning of a pipe group for which construction has been completed. Obtaining position information; comparing the three-dimensional CAD model with the first laser scanning result to determine a match; out of the three-dimensional position information obtained through the first laser scanning; , Performing a stress analysis on information that does not match the three-dimensional CAD model, and determining a re-installation operation for the piping group corresponding to the stress analysis result.

  Performing a thermal displacement analysis on the three-dimensional CAD model; obtaining a three-dimensional position information of the pipe group through second laser scanning for the pipe group under test operation; and Comparing the second laser scanning result to determine a match, and among the three-dimensional position information obtained through the second laser scanning, information that does not match the three-dimensional CAD model more than an allowable error. The method may further include a step of performing a stress analysis, and determining a load adjustment of the support base for the piping group or a change in the type of the support base in response to the stress analysis result.

  The piping design information may include information on a fitting flow, a support base, and a pipe attachment.

  The result of the stress analysis includes result information and piping information, and the result information includes analytical stress, support base load, analytical load, analytical displacement that is a final displacement coordinate of the piping, and load conditions, and the piping The information includes the pipe size, pipe thickness, insulation layer thickness, fitting flow information that interconnects the pipe, initial position of the pipe, initial coordinates of the pipe, material information of the pipe, and unit system information. May be included.

  In addition, a computer-readable recording medium in which a program for executing the pipe shape management method according to the present invention is recorded is provided.

  Meanwhile, a pipe shape management system according to an embodiment of the present invention receives a three-dimensional CAD model including a plurality of pipe design information, and performs a third order of the pipe group through first laser scanning for the pipe group for which reception has been completed. Among the three-dimensional position information obtained through the first laser scanning, the laser scanning unit that obtains original position information, the comparison unit that compares the three-dimensional CAD model with the first laser scanning result, A stress analysis unit that performs stress analysis on information that does not match the original CAD model; and a control unit that determines re-installation for the piping group in response to the stress analysis result.

  In addition, a thermal displacement analysis unit that performs thermal displacement analysis on the three-dimensional CAD model is further included, and the laser scanning unit performs three-dimensional position information of the pipe group through second laser scanning with respect to the pipe group under test operation. The comparison unit compares the thermal displacement analysis result and the second laser scanning result, and the stress analysis unit compares the three-dimensional position information acquired through the second laser scanning. Among them, the stress analysis is performed on information that does not match the three-dimensional CAD model with an allowable error or more, and the control unit responds to the stress analysis result and adjusts the load of the support base for the piping group or changes the type of the support base You can decide.

  The piping design information may include information on a fitting flow, a support base, and a pipe attachment.

  The result of the stress analysis includes result information and piping information, and the result information includes analytical stress, support base load, analytical load, analytical displacement that is a final displacement coordinate of the piping, and load conditions, and the piping The information includes the pipe size, pipe thickness, insulation layer thickness, fitting flow information that interconnects the pipe, initial position of the pipe, initial coordinates of the pipe, material information of the pipe, and unit system information. May be included.

  The present invention analyzes the soundness of piping through laser scanning between a stopped state and a starting state based on a three-dimensional CAD model of a plant and a power plant, minimizes errors in piping design and construction, and periodically A pipe shape management system, a method thereof, and a computer-readable recording medium capable of maximizing facility reliability through accurate thermal deformation measurement are provided.

It is a flowchart which shows roughly the flow by the piping shape management method by one Embodiment of this invention. It is a flowchart which shows roughly the flow by the piping shape management method by other embodiment of this invention. It is drawing which shows roughly the structure of the piping shape management system by one Embodiment of this invention. It is drawing which shows schematically the structure of the piping shape management system by other embodiment of this invention.

  The advantages, features, and methods of achieving the same of the present invention will become apparent with reference to the embodiments described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments presented below, and may be embodied in various different forms, and all conversions, equivalents or alternatives included in the spirit and technical scope of the present invention. It must be understood as including. The embodiments presented below are provided in order to complete the disclosure of the present invention and to fully inform those skilled in the art to the technical scope of the present invention. In the description of the present invention, when it is determined that a specific description related to a related known technique obscures the gist of the present invention, a detailed description thereof will be omitted.

  The terms used in the present application are merely used to describe particular embodiments, and are not intended to limit the present invention. An expression used in the singular encompasses the expression of the plural, unless it has a clearly different meaning in the context. In this application, terms such as “comprising” or “having” designate that there are features, numbers, steps, actions, components, parts, or combinations thereof described in the specification. It should be understood that this does not exclude the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof. Terms such as “first” and “second” are used to describe various components, but the components are not limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

  FIG. 1 is a flowchart schematically showing a flow of a pipe shape management method according to an embodiment of the present invention.

  Referring to FIG. 1, a pipe shape management method according to an embodiment of the present invention includes a three-dimensional CAD (computer aided design) model acquisition step (S110), a first laser scanning step (S120), and a data comparison step (S130). , Including a stress analysis stage (S140) and a re-installation determination stage (S150).

  In the three-dimensional CAD model acquisition stage (S110), a three-dimensional CAD model including a plurality of pipe design information is acquired, and in the first laser scanning stage (S120), the first laser scanning is performed on the pipe group for which construction has been completed. Through the process, the three-dimensional position information of the pipe group is obtained. In the data comparison step (S130), the three-dimensional CAD model and the first laser scanning result are compared to determine whether they match.

  The pipe shape management method according to the present invention compares a three-dimensional CAD model in which pipe design information of a plant or a power plant is included with a three-dimensional laser scan result of a pipe in a state where construction has been completed. The purpose is to check the installation status of the main piping.

  The three-dimensional position information acquired in the first laser scanning step (S120) means three-dimensional position information of pipes that have been completed, and the pipe group includes a plurality of pipes. It can be understood that main piping such as a power plant is also included in the piping group.

  The three-dimensional CAD model is generated through a three-dimensional CAD system based on data of material and dimensions to which codes and standards necessary for power plant or plant design are applied.

  3D laser scanning technology is a method for converting the installation and operation status of pipes to 3D. Data is acquired using ion time calculation or phase shift of laser emitted from the equipment, and 3D distance is obtained. It is used to construct the shape of the object by calculating the value.

  It can be understood that the three-dimensional CAD model acquired in the three-dimensional CAD model acquisition step (S110) includes piping design information that is expected to be actually constructed, and the first laser scanning step ( The three-dimensional position information acquired in S120) is information acquired through laser scanning on an actual pipe constructed based on the three-dimensional CAD model.

  Therefore, when the pipe is correctly constructed based on the three-dimensional CAD model, the pipe design information included in the three-dimensional CAD model and the three-dimensional obtained through the laser scanning. Only the position information matches or falls within an acceptable error range.

  In the data comparison step (S130), the pipe design information included in the three-dimensional CAD model is compared with the three-dimensional position information of the pipe group. The pipe design information included in the three-dimensional CAD model includes position information relating to a fitting flow, a support base, and a pipe attachment. In the data comparison step (S130), the pipe design information and the first laser are included. The position information acquired in the scanning step (S120) is compared with each other, and it is confirmed whether or not the fitting flow, the support base and the pipe attachment match each other.

  More specifically, in the data comparison step (S130), the piping design information is extracted as x, y, z coordinates, and the three-dimensional position information acquired in the first laser scanning step (S120) is used. The information can be input to a three-dimensional CAD system and the position information of each can be compared.

  In the stress analysis step (S140), a stress analysis is performed on a portion of the three-dimensional position information acquired through the first laser scanning that does not match the pipe design information corresponding to the three-dimensional CAD model. .

  At this time, a pipe stress analysis program can be used. The pipe stress analysis program considers the pressure and temperature of the pipe based on the codes and standards necessary for the design of the power plant and plant, and loads the pipe. By calculating displacement, stress and vibration, the soundness of the pipe can be evaluated.

  Finally, in the re-construction determination step (S150), if the stress analysis result in the stress analysis step (S140) cannot satisfy a preset restriction condition, the pipe (or fitting flow) , Support base or pipe attachment) is determined so as to be adjusted as designed.

  Therefore, the pipe shape management method according to one embodiment of the present invention can compare the design information with the position information of the pipe based on the actual construction information, and can evaluate the soundness of the pipe based on the comparison result. By determining the re-installation time after starting the actual operation after the piping construction of the power plant and the plant via the above, it is possible to provide the effect of preventing the accident in advance.

  FIG. 2 is a flowchart schematically showing a flow of a pipe shape management method according to another embodiment of the present invention.

  Referring to FIG. 2, a pipe shape management method according to an embodiment of the present invention includes a three-dimensional CAD model acquisition stage (S110), a first laser scanning stage (S120), a data comparison stage (S130), and a stress analysis stage ( S140), re-installation determination stage (S150), thermal displacement analysis stage (S210), second laser scanning stage (S220), data comparison stage (S230), stress analysis stage (S240), and support base adjustment determination stage (S250) )including.

  In the three-dimensional CAD model acquisition stage (S110), the first laser scanning stage (S120), the data comparison stage (S130), the stress analysis stage (S140), and the reconstruction determination stage (S150), refer to FIG. The substantially same operation as the three-dimensional CAD model acquisition stage (S110), the first laser scanning stage (S120), the data comparison stage (S130), the stress analysis stage (S140), and the reconstruction determination stage (S150) described above. Therefore, the detailed description is omitted only for the overlapping contents.

  In the thermal displacement analysis step (S210), thermal displacement analysis is performed on the three-dimensional CAD model acquired in the three-dimensional CAD model acquisition step (S110), and in the second laser scanning step (S220), trial operation is in progress. The three-dimensional position information of the pipe group is acquired through the second laser scanning for the pipe group.

  In the data comparison step (S230), the thermal displacement analysis result and the second laser scanning result are compared to determine whether they match. The second laser scanning step (S220) is performed during a test operation of a plant or a power plant that has completed piping construction using the three-dimensional CAD model.

  As described with reference to FIG. 1, since the first laser scanning step (S120) is performed on the pipe before the trial operation, the first laser scanning step (S120) is obtained through the second laser scanning step (S220). It can be understood that the three-dimensional position information is different from the three-dimensional position information obtained through the first laser scanning step (S120).

  On the other hand, the thermal displacement analysis performed in the thermal displacement analysis step (S210) assumes a case where the plant or the power plant is in an operating state with respect to the piping design information included in the three-dimensional CAD model. It can be understood that the position change in the operation state of the corresponding piping is predicted.

  The three-dimensional position information acquired in the second laser scanning step (S220) corresponds to a laser scanning result performed by the pipe group during a test run. In the data comparison step (S230), the three-dimensional position information is obtained for the pipe group. The predicted position information during the trial run is compared with the actual position information obtained through actual laser scanning.

  In the stress analysis step (S240), stress analysis is performed on information that does not coincide with the three-dimensional CAD model more than an allowable error among the three-dimensional position information acquired through the second laser scanning.

  Finally, in the support base adjustment determination step (S250), in accordance with the stress analysis result performed in the stress analysis step (S240), the load adjustment of the support base for the piping group or the type change of the support base Decide what you want.

  As described with reference to FIG. 1, a three-dimensional CAD model acquisition stage (S110), a first laser scanning stage (S120), a data comparison stage (S130), a stress analysis stage (S140), and a reconstruction determination stage ( S150) is performed in the pre-construction stage of the plant and the power plant, and the thermal displacement analysis stage (S210), the second laser scanning stage (S220), the data comparison stage (S230), the stress analysis stage (S240), and the support base adjustment It can be understood that the determination step (S250) is performed in a trial operation step after completion of the construction of the plant and the power plant.

  On the other hand, the result of the stress analysis performed in the stress analysis stage (S140) and the stress analysis stage (S240) includes result information and piping information, and the result information includes analysis stress, support base load, analysis load. The analysis displacement that is the final displacement coordinate of the pipe, and the load condition may be included.

  The pipe information includes the size of the pipe subjected to the stress analysis, the pipe thickness, the heat insulation layer thickness, the fitting flow information for interconnecting the pipe, the position of the support base, the initial coordinates of the pipe, the material information of the pipe, and Unit system information may be included.

  FIG. 3 is a drawing schematically showing a configuration of a pipe shape management system according to an embodiment of the present invention.

  Referring to FIG. 3, the pipe shape management system 100 according to an embodiment of the present invention includes a laser scanning unit 110, a comparison unit 120, a stress analysis unit 130, and a control unit 140.

  The laser scanning unit 110 receives a three-dimensional CAD model including a plurality of pipe design information, and acquires the three-dimensional position information of the pipe group through the first laser scanning for the pipe group that has been received.

  The pipe shape management system 100 according to the present invention compares a three-dimensional CAD model in which pipe design information of a plant or a power plant is included with a three-dimensional laser scan result of a pipe in a state where construction has been completed, and the comparison result. The purpose is to check the installation status of the main piping.

  The three-dimensional position information acquired through the first laser scanning means three-dimensional position information of a pipe that has been completed, and the pipe group includes a plurality of pipes, thereby providing a plant, a power plant, It can be understood that main pipes such as are included in the pipe group.

  The three-dimensional CAD model is generated through a three-dimensional CAD system based on data of material and dimensions to which codes and standards necessary for power plant or plant design are applied.

  3D laser scanning technology is a method for converting the installation and operation status of pipes to 3D. Data is acquired using ion time calculation or phase shift of laser emitted from the equipment, and 3D distance is obtained. It is used to construct the shape of the object by calculating the value.

  Meanwhile, the three-dimensional CAD model can be understood to include piping design information that is expected to be actually constructed, and the three-dimensional position information acquired through the first laser scanning is This is information obtained through laser scanning of actual piping constructed based on a three-dimensional CAD model.

  Therefore, when the pipe is correctly constructed based on the three-dimensional CAD model, the pipe design information included in the three-dimensional CAD model and the three-dimensional obtained through the laser scanning. Only the position information matches or falls within an acceptable error range.

  The comparison unit 120 compares the three-dimensional CAD model with the first laser scanning result. The pipe design information included in the three-dimensional CAD model includes position information related to a fitting flow, a support base and a pipe attachment, and the comparison unit 120 obtains position information acquired by the pipe design information and the laser scanning unit 110. Are compared, and it is confirmed whether or not the fitting flow, the support base, and the piping attachment match each other.

  More specifically, the comparison unit 120 extracts the pipe design information as x, y, and z coordinates, inputs the three-dimensional position information acquired by the laser scanning unit 110 into a three-dimensional CAD system, Location information can be compared.

  The stress analysis unit 130 performs stress analysis on information that does not match the three-dimensional CAD model among the three-dimensional position information acquired through the first lator scanning. The stress analysis unit 130 can use a pipe stress analysis program, and the pipe stress analysis program considers the pressure and temperature of the pipe based on codes and standards necessary for the design of the power plant and plant, By calculating the load, displacement, stress and vibration of the pipe, the soundness of the pipe can be evaluated.

  The control unit 140 determines whether to reconstruct the piping group in accordance with the stress analysis result. More specifically, when the stress analysis result in the stress analysis unit 130 cannot satisfy the preset restriction condition, the control unit 140 is connected to the pipe (or fitting flow, support base, or pipe attachment). ) Is adjusted as designed.

  Therefore, the pipe shape management system 100 according to the embodiment of the present invention can compare the design information with the position information of the pipe based on the actual construction information, and can evaluate the soundness of the pipe according to the comparison result. In this way, it is possible to provide an effect of preventing an accident in advance by deciding whether or not to reconstruct after starting the actual operation after the piping construction of the power plant and the plant.

  FIG. 4 is a drawing schematically showing a configuration of a pipe shape management system according to another embodiment of the present invention.

  Referring to FIG. 4, a pipe shape management system 200 according to another embodiment of the present invention includes a laser scanning unit 210, a comparison unit 220, a stress analysis unit 230, a control unit 240, and a thermal displacement analysis unit 250.

  The laser scanning unit 210, the comparison unit 220, the stress analysis unit 230, and the control unit 240 are substantially the same as the laser scanning unit 110, the comparison unit 120, the stress analysis unit 130, and the control unit 140 described with reference to FIG. Since the function is performed, a specific description is omitted only for the overlapping contents.

  The thermal displacement analysis unit 250 performs thermal displacement analysis on the three-dimensional CAD model, and the laser scanning unit 210 further acquires the three-dimensional position information of the pipe group through the second laser scanning with respect to the pipe group under test operation. . The second laser scanning is performed during a test operation of a plant or a power plant that has completed piping construction by the three-dimensional CAD model.

  As described with reference to FIG. 3, since the first laser scanning is performed on the pipe before the trial operation, the three-dimensional position information acquired through the second laser scanning is: It can be understood that it is different from the three-dimensional position information obtained through the first laser scanning.

  In addition, the comparison unit 220 compares the thermal displacement analysis result and the second laser scanning result, and the stress analysis unit 230 includes the three-dimensional position information acquired through the second laser scanning. Stress analysis is performed on information that does not agree with the 3D CAD model more than the allowable error.

  And the control part 240 determines the load adjustment of the support stand with respect to the said piping group, or the kind change of a support stand corresponding to the said stress analysis result.

  On the other hand, the present invention can be embodied as a computer-readable code on a computer-readable recording medium. Computer-readable recording media include all types of recording devices that store data that can be read by a computer system. Examples of computer-readable recording media include ROM (read-only memory), RAM (random access memory), CD-ROM (compact disc read only memory), magnetic tape, floppy disk, and optical data storage device. is there.

  The computer-readable recording medium is distributed in a computer system connected to a network, and a computer-readable code is stored and executed in a distributed manner. The functional program, code, and code segment for implementing the present invention are easily inferred by a programmer in the technical field to which the present invention belongs.

  Unless explicitly stated in the order of steps constituting the method according to the invention, or vice versa, the steps are carried out in a suitable order. The present invention is not necessarily limited by the description order of the steps. In the present invention, the use of all examples or exemplary terms (eg, etc.) is merely for the purpose of describing the present invention in detail, and is not limited by the scope of the claims. The terminology does not limit the scope of the invention. Further, those skilled in the art will be able to configure the present invention by design conditions and factors within the scope of the appended claims or equivalents to which various modifications, combinations and changes are added. Will be able to understand.

  Therefore, the idea of the present invention is not limited to the above-described embodiments, and is not limited to the scope of the claims, but is equivalent to the scope of the claims or all equivalently modified from the scope of the claims. This range belongs to the category of the idea of the present invention.

  The pipe shape management system, the method thereof, and the computer-readable recording medium of the present invention can be effectively applied to, for example, a technical field related to pipes.

100, 200 Pipe shape management system 110, 210 Laser scanning unit 120, 220 Comparison unit 130, 230 Stress analysis unit 140, 240 Control unit 250 Thermal displacement analysis unit

Claims (9)

Obtaining a three-dimensional CAD model including a plurality of pipe design information;
Obtaining the three-dimensional position information of the pipe group through first laser scanning for the pipe group for which construction has been completed;
Comparing the three-dimensional CAD model with the first laser scanning result to determine a match;
Performing stress analysis on information that does not match the three-dimensional CAD model among the three-dimensional position information obtained through the first laser scanning;
A pipe shape management method including the step of determining re-installation for the pipe group corresponding to the stress analysis result. Performing thermal displacement analysis on the three-dimensional CAD model;
Obtaining the three-dimensional position information of the pipe group via second laser scanning for the pipe group under test operation;
Comparing the thermal displacement analysis result and the second laser scanning result to determine a match;
Performing stress analysis on information that does not match the three-dimensional CAD model more than an allowable error among the three-dimensional position information obtained through the second laser scanning;
The pipe shape management method according to claim 1, further comprising a step of determining a load adjustment of a support base for the pipe group or a type change of the support base corresponding to the stress analysis result.   The pipe shape management method according to claim 1, wherein the pipe design information includes information on a fitting flow, a support base, and a pipe attachment. The result of the stress analysis includes result information and piping information,
The result information includes analysis stress, support base load, analysis load, analysis displacement which is a final displacement coordinate of the pipe, and load conditions,
The pipe information includes the size of the pipe subjected to stress analysis, pipe thickness, heat insulation layer thickness, fitting flow information for interconnecting the pipe, position of the support base, initial coordinates of the pipe, material information of the pipe, and unit system The pipe shape management method according to claim 1 or 2, further comprising information.   The computer-readable recording medium with which the program for performing the method of any one of Claim 1 thru | or 4 is recorded. A laser scanning unit that receives a three-dimensional CAD model including a plurality of pipe design information and obtains three-dimensional position information of the pipe group through first laser scanning of the pipe group for which reception has been completed;
A comparison unit for comparing the three-dimensional CAD model with the first laser scanning result;
A stress analysis unit that performs stress analysis on information that does not match the three-dimensional CAD model among the three-dimensional position information obtained through the first laser scanning;
A pipe shape management system that includes a control unit that determines the re-installation for the pipe group in response to the stress analysis result. A thermal displacement analysis unit that performs thermal displacement analysis on the three-dimensional CAD model;
The laser scanning unit further acquires the three-dimensional position information of the pipe group through the second laser scanning for the pipe group under test operation,
The comparison unit compares the thermal displacement analysis result with the second laser scanning result,
The stress analysis unit performs stress analysis on information that does not match the 3D CAD model with an allowable error or more out of the 3D position information obtained through the second laser scanning,
The pipe shape management system according to claim 6, wherein the control unit determines a load adjustment of a support base for the pipe group or a type change of the support base corresponding to the stress analysis result.   The pipe shape management system according to claim 6, wherein the pipe design information includes information on a fitting flow, a support base, and a pipe attachment. The result of the stress analysis includes result information and piping information,
The result information includes analysis stress, support base load, analysis load, analysis displacement which is a final displacement coordinate of the pipe, and load conditions,
The pipe information includes the size of the pipe subjected to stress analysis, pipe thickness, heat insulation layer thickness, fitting flow information for interconnecting the pipe, position of the support base, initial coordinates of the pipe, material information of the pipe, and unit system The pipe shape management system according to claim 6 or 7, comprising information.

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